noun
greeting campaign; friendly-greeting campaign
A community initiative encouraging people to greet each other, often aimed at improving safety, reducing crime, or fostering neighborhood ties.
地域の安全のために声かけ運動が行われている。
A greeting campaign is being carried out for the safety of the community.
学校で声かけ運動を始めてから、子どもたちのあいさつが増えた。
Since starting the greeting campaign at school, the children's greetings have increased.
Compound of 声かけ (calling out, greeting) and 運動 (movement, campaign).